Abstract
The principle of unity, interrelation of being and history is viewed here as a principle of ontology, gnoseology and epistemology, as a basis of updating philosophical outlooks, especially the problem of man and his relationship to the world . It is shown that consciousness was been interpreted in the context of a specific type of relations of man to the world. To overcome subjectivism a deep sense of objectivity of being and its development in relation to man is restored. A three-tier definition of being is given: substantive, attributive, and properly historical. The relationship of human activity to being and its development is explicated